Malicious PDF — malware analysis report

Static analysis result for SHA-256 94955e5f3bbb2080…

MALICIOUS

PDF

48.0 KB Created: 2021-09-27 17:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 9f67abfd0aefed43a04a79cc67990fe6 SHA-1: f820c414bc920e63a4d3b13639b58b0209361310 SHA-256: 94955e5f3bbb2080a6d797c986fb3dbdb067b7107759ba2507c3bf310f795339
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to distribute content via link farms. The embedded JavaScript likely facilitates the redirection to these malicious URLs, which are used to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6441

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://garglob.ru/uplcv?utm_term=tattered+devney+perry+epub PDF link annotation
    • http://ekorepetycje.eu/Upload/file/91389998764.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/161340eba59b85---29540280136.pdfIn PDF document text
    • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/33418119919.pdfIn PDF document text
    • https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/kafalikavokusedibamilekes.pdfIn PDF document text
    • http://n3ss.ro/ckfinder/userfiles/files/xubawazazawozamifepuk.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132817e31743---56499084430.pdfIn PDF document text
    • http://vuonlan.vn/data/upload/files/pigibodu.pdfIn PDF document text
    • http://www.chp.pl/ckfinder/userfiles/files/89933593105.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/04ef24ecf41a72a902a5fa1409b8a3aa/8551312472.pdfIn PDF document text
    • https://alistairmills.com/ckfinder/userfiles/files/pobajolunejasulepu.pdfIn PDF document text
    • http://7m-shop.com/userfiles/file/30883159755.pdfIn PDF document text
    • http://studiosimonepantaleo.it/userfiles/files/49938058923.pdfIn PDF document text
    • http://klinok-saintp.ru/files/20521823951.pdfIn PDF document text
    • http://geoscan.it/userfiles/files/segifunurabib.pdfIn PDF document text
    • https://satesayap.com/contents/files/kekabipuwikewovotivodaw.pdfIn PDF document text
    • https://bevasilicones.in/userfiles/file/xapenovunekukavonifogunoz.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/65b6bd0170f711d16e180df8f8befa72/26828597250.pdfIn PDF document text
    • https://apc-algercentre.dz/ckfinder/userfiles/files/32348944891.pdfIn PDF document text
    • http://tano-cable.com/d/files/rupesike.pdfIn PDF document text
    • https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/xininugotewu.pdfIn PDF document text
    • http://happysmilecard.com/uploads/files/sugujilud.pdfIn PDF document text
    • https://www.renouer-auxerre.com/ckfinder/userfiles/files/kawipabukidekotex.pdfIn PDF document text
    • http://woodwork.pl/ubezpiecz/obrazy/file/bofebusezod.pdfIn PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/zutejik.pdfIn PDF document text
    • http://coytex.net/ckfinder/userfiles/files/pezema.pdfIn PDF document text

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